title: Annular pancreas.
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D001466:Barium Sulfate; D003287:Contrast Media; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000002:abnormalities* / Q000196:embryology; D013997:Time Factors
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate